Gene Explains Why Breast-Feeding Makes Kids Smarter

LONDON (Reuters) - A very common gene can help explain why breast-fed babies tend to grow up to be more intelligent than those raised exclusively on bottled milk.
Breast-fed babies who shared the genetic variant outscored bottle-fed peers in intelligence tests, researchers said. The variant to the FADS2 gene, involved in processing fatty acids, is found in about 90 percent of people, they added.